y=(4x+5)(x-3)

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Solution for y=(4x+5)(x-3) equation: 


Simplifying
y = (4x + 5)(x + -3)

Reorder the terms:
y = (5 + 4x)(x + -3)

Reorder the terms:
y = (5 + 4x)(-3 + x)

Multiply (5 + 4x) * (-3 + x)
y = (5(-3 + x) + 4x * (-3 + x))
y = ((-3 * 5 + x * 5) + 4x * (-3 + x))
y = ((-15 + 5x) + 4x * (-3 + x))
y = (-15 + 5x + (-3 * 4x + x * 4x))
y = (-15 + 5x + (-12x + 4x2))

Combine like terms: 5x + -12x = -7x
y = (-15 + -7x + 4x2)

Solving
y = -15 + -7x + 4x2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = -15 + -7x + 4x2

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